AD5700BCPZ-R5 查看數據表（PDF） - Analog Devices

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AD5700BCPZ-R5

Low Power HART Modem

Analog Devices 

AD5700/AD5700-1

TABLE OF CONTENTS

Features .....................................................................................1

Applications...............................................................................1

General Description ..................................................................1

Functional Block Diagram.........................................................1

Revision History ........................................................................2

Specifications.............................................................................3

Timing Characteristics...........................................................5

Absolute Maximum Ratings......................................................6

Thermal Resistance................................................................6

ESD Caution ..........................................................................6

Pin Configuration and Function Descriptions...........................7

Typical Performance Characteristics .........................................9

Terminology ............................................................................12

Theory of Operation................................................................13

REVISION HISTORY

12/2016—Rev. F to Rev. G

Changes to Figure 2 and Table 6................................................7

1/2014—Rev. E to Rev. F

Changes to Figure 3 to Figure 7.................................................9

Changes to Example Section....................................................14

10/2013—Rev. D to Rev. E

Changes to t7 and t8 Descriptions, Table 3..................................5

Changed θJA from 30°C/W to 56°C/W.......................................6

Added Figure 13 and Figure 14................................................10

Changes to External Crystal Section and Figure 25.................15

5/2013—Rev. C to Rev. D

2/2013—Rev. B to Rev. C

Changed 2 V to 5.5 V Power Supply to 1.71 V to 5.5 V Power

Supply, Features Section ............................................................1

Changes to Summary Statement, VCC Parameter, and Internal

Reference Voltage Parameter Test Conditions/Comments,

Table 2 .......................................................................................3

Changed VCC = 2 V to 5.5 V to VCC = 1.71 V to 5.5 V in the

Summary Statement, Table 3 .....................................................5

Changes to Pin 18 Description and EPAD Mnemonic and

Description, Table 6...................................................................7

Changes to Figure 9 and Figure 13 ..........................................10

Changes to Figure 28 ...............................................................18

Change to Figure 30.................................................................20

Data Sheet

FSK Modulator.................................................................... 13

Connecting to HART_OUT................................................ 14

FSK Demodulator................................................................ 14

Connecting to HART_IN or ADC_IP ................................. 14

Clock Configuration............................................................ 15

Supply Current Calculations................................................ 16

Power-Down Mode ............................................................. 16

Full Duplex Operation......................................................... 16

Applications Information ........................................................ 17

Supply Decoupling............................................................... 17

Transient Voltage Protection................................................ 17

Typical Connection Diagrams............................................. 18

Outline Dimensions................................................................ 21

Ordering Guide ................................................................... 21

7/2012—Rev. A to Rev. B

Removed VCC and IOVCC Current Consumption Text, Table 2.. 3

Added Internal Oscillator and External Clock Parameters

to Table 2................................................................................... 4

Changes to t2 Description and Endnote 2, Table 3..................... 5

Changes to IOVCC Description, Table 6..................................... 7

Added Supply Current Calculations Section ........................... 16

Added Transient Voltage Protection Section, Figure 26, and

Figure 27; Renumbered Sequentially....................................... 17

Changes to Typical Connection Diagrams Section.................. 18

Changes to Figure 29............................................................... 19

Changes to Figure 30............................................................... 20

Updated Outline Dimensions.................................................. 21

4/2012—Rev. 0 to Rev. A

Change to Transmit Impedance Parameter, RTS Low, Table 2 .. 4

Changes to Figure 3, Figure 4, Figure 5, and Figure 7................ 9

Changes to Figure 10 and Figure 11 ........................................ 10

Changed AD5755 to AD5755-1 Throughout .......................... 17

Change to Figure 27 ................................................................ 18

2/2012—Revision 0: Initial Version

Rev. G | Page 2 of 24

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